3 netopia 2247 routers daisychained

I have 3 netopia routers linked together via cat5e. The reason for this is because the first one is in house no 1 connected to a dell dimension running xp.router no 2 is in house no 2 and connected to a dell vostro running vista and router no 3 is in house no 3 connected to a acer aspire laptop running vista.The reason for 3 routers is because of really solid walls with poor wireless signals between the 3 houses.Situation at present: pc nos 1 and 3 do not connect when laptop is running and intermittent or poor connection on pcs 1 and 3. How can i get all 3 pc to run at the same time.

How far are you running the CAT5 cables from house to house? CAT5e only has a solid range of about 150ft, and anything near 100ft is pushing it. You may also need to use CROSSOVER cables when plugging routers into other routers.
Also, who has the actual internet connection? I'm assuming House 2 does. One big problem is a router is your Gateway address. And, if house 2 is the only one with a valid Internet connection (via DSL or Cable, etc), then the router in house 2 is the only "true gateway". And, all 3 houses need to be in the same physical network (i.e. 192.168.1.0 range or whatever), and all computers should have the same Gateway address...which would be the IP address of the router in House 2.
What you really need in this situation is 1 router and 2 switches. Put the router in House 2 and put switches in House 1 and 3. That would be the best way to handle this problem. It would also end your connectivity problems.
Cheers!

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this is not so much a soloution but an idea!
from memory the netopia devices allow you to configure a dmz device by IP or MAC address.

I have had to do something similar but with a buffalo unit instead of your linksys. I ended up having to place the buffalo unitin into a dmz created on the netopia unit. before VPN tunnles were formed correctly.

ok heres the solution.goto start,control panel,performance and maintainance,administrative tools,services.Scroll down to bottom to WIRELESS ZERO CONFIG,double click and click start.now exit and wait a minute and your limited or no connectivity should change to connected,let me know if this helps,Patrick.

If your talking about the password for the router user interface that is not working that resetting it again using a pen or a paper clip just press and hold the reset button for 30 seconds then that should bring your router to its default settings with the default username and password.